{
  "schema_version": "1.0.0",
  "created_at": "2026-04-09T12:00:00-05:00",
  "map_fingerprint": {
    "hash": "d64650802da36b1bd506219178e3353ba544c04f3432870a41df12b7d87cfa7f",
    "algorithm": "sha256"
  },
  "model": {
    "human_user_name": "",
    "llm_name": "GPT-5.4 Thinking"
  },
  "agent": {
    "name": "Web Mapper GPT",
    "url": "https://webmapgpt.com",
    "version": "2026-04-09"
  },
  "map": {
    "title": "Happy Koningsdag, Netherlands!",
    "description": "An orange-forward ceremonial web map of Koningsdag royal visit locations in the Netherlands, shown with offset crown symbols and styled popups.",
    "stack": [
      {
        "name": "Leaflet",
        "version": "1.9.4"
      },
      {
        "name": "Google Fonts",
        "version": "web"
      },
      {
        "name": "CARTO Positron tiles",
        "version": "web"
      }
    ],
    "outputs": {
      "demo_url": "",
      "repo_url": ""
    }
  },
  "datasets": [
    {
      "name": "koningsdag_royal_visits.csv",
      "type": "CSV",
      "source_url": "https://en.wikipedia.org/wiki/Koningsdag",
      "fields": [
        {
          "name": "Royalty",
          "type": "string"
        },
        {
          "name": "Year",
          "type": "integer"
        },
        {
          "name": "Place visited 1",
          "type": "string"
        },
        {
          "name": "Place visited 1 Lat",
          "type": "number"
        },
        {
          "name": "Place visited 1 Lon",
          "type": "number"
        },
        {
          "name": "Place visited 2",
          "type": "string"
        },
        {
          "name": "Place visited 2 Lat",
          "type": "number"
        },
        {
          "name": "Place visited 2 Lon",
          "type": "number"
        },
        {
          "name": "Place visited 3",
          "type": "string"
        },
        {
          "name": "Place visited 3 Lat",
          "type": "number"
        },
        {
          "name": "Place visited 3 Lon",
          "type": "number"
        }
      ]
    },
    {
      "name": "royal_visits.geojson",
      "type": "GeoJSON",
      "fields": [
        {
          "name": "royalty",
          "type": "string"
        },
        {
          "name": "person_short",
          "type": "string"
        },
        {
          "name": "year",
          "type": "integer"
        },
        {
          "name": "place",
          "type": "string"
        },
        {
          "name": "color",
          "type": "string"
        },
        {
          "name": "originalLat",
          "type": "number"
        },
        {
          "name": "originalLon",
          "type": "number"
        },
        {
          "name": "plotLat",
          "type": "number"
        },
        {
          "name": "plotLon",
          "type": "number"
        },
        {
          "name": "overlapIndex",
          "type": "integer"
        }
      ]
    }
  ],
  "prompts": [
    "Please create a map of the following locations in this CSV file following the schema below and all general schema defaults and preferences I've previously provided you in other requests over the past month (e.g., border-radius 10px, title top, left-aligned, information modal, etc.).f\n\n# Intent\nCreate a map to celebrate the Netherlands \"Koningsdag.\" It is meant to rile up the Dutch masses and build support for their monarchy \u2013 after all, the holiday was created to galvanize popularity for the monarchy.\n\n# Style\nUse Netherlands and Holland Orange a lot. Use \"Royal\" style fonts for pomp and ceremony in the title and pop-ups. Choose from available Google Fonts.\n\n# Map\nKeep the map focused on the Netherlands only. Don't let the map be zoomed out past the Netherlands. Users may zoom in 3 or four times the initial zoom. If a visit was outside of the current Netherlands, please omit it.\n\nFind a nice base, simple gray-scale base map and give it an orange tint.\n\n# Symbology\nFor each visit, please a royal crown symbol. Purple for Beatrix and Dark Blue for the guy. If the symbols overlap a little bit, offset them a little so both are selectable at once.\n\n# Title\n- \"Happy Koningsdag, Netherlands!\"\n\n## Subtitle\n- \"A map of historic photo-op visits by Queen and King\"\n\nWhen users click on a visit, the person and place visited, with the year should show up in a pop-up.\n\nIn the attribution modal please include:\n- Original data source: https://en.wikipedia.org/wiki/Koningsdag\n- Data created using Perplexity Pro.\n- Map: Web Map GPT (link to map)\n- Provenance file: link to provenance file\n- Map Tiles: {provider}\n- APIs: {list APIs}\n- Part of the 365 Days of Maps Campaign. View every day's map here: https://mapdesign.icaia.org"
  ]
}